<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
<h1>登录</h1>
<form action="/login" method="post">
    用户名:<input type="text" name="username" placeholder="用户名" ><br>
    密&nbsp;&nbsp;&nbsp;码:<input type="password" name="password" placeholder="密码"><br>
    <input type="submit">
</form>
</body>
</html>